You mentioned RLCDs does this mean the screen technology is in the same family as transflective screens?
I have a OLPC and a Toshiba R500 which have this kind of screen and they sorta kinda do work in sunlight but less so now than the newer super bright iPad screens.
I’m curious if you think you have this down if that means there is a road to color in the future.
Just looking at Austin area I was pretty surprised to see that the price varied from $3.89 to $5.39 between South Austin and Round Rock (North Austin). But also even a $1 difference from McDonalds in Round Rock on opposite sides of the free way.
I don’t really eat at McDonalds but surely people who do would notice these kinds of differences right away.
> after bedtime, the lights still come on when someone goes in the bathroom, but very dim, etc.
I’d be curious to hear more about this. Most of the “smart” light solutions I’ve tried struggle to go directly to a specific lighting level without some bright flash as they activate.
What brand switches/lights are you using to do this with?
(Not the parent poster) I have Phillips Hue lights and they can turn onto a dim setting without a bright flash. They also can fail-normal if you change the default settings.
They've added a popup to the app recently saying that soon Hue will require an account to work though, so I don't recommend them anymore. I've been meaning to move them to a separate offline network before they force update them to require an account. I originally purchased them because of how well they functioned locally without needing any Phillips cloud stuff. But sometimes I still use the official app instead of my homebrew setup.
If you own your own home, smart switches with dumb dimming capable lights are the way to go IMO. I'm still renting though.
Most commercial lighting controls allow you to preset the initial dimming level. Acuity, Lutron, Leviton, Wattstopper, Hubbell, etc.
I’d stay away from consumer grade stuff, it’s pretty much all garbage. Commercial controls will come with a 5 year warranty.
Most commercial lighting controls have 0-10v dimming, but you can get forward or reverse phase line voltage dimmers to use with consumer grade LED lamps (bulbs).
After reading this I assumed he used some kind of remote server he had access to. Eg phone is the Bluetooth keyboard, fire stick provides an internet connection and a browser, and remote server provides the full Linux environment to do whatever actually hacking with.
Maybe I’m missing something here, but wouldn’t heat become a bigger issue? Right now we have pretty intense cooling solutions to get heat off the surface of a comparatively thinner chip. If chips become more cubic how would we cool the inside?
If we keep going down this route I have to wonder if we'll see something drastic in the cooling space.
CPU dies are optimised towards being cooled from one side. I wonder if we'll eventually see sockets, motherboards and heat spreaders shift towards cooling both sides of the CPU.
Probably not, can't imagine what a halfway feasible solution to integrating pin out and a heat spreader would be.
A couple years back they noted that they were looking at having essentially cooling pipes _inside_ the chips. There hasn't been much noise in terms of commercialization, but that's the kind of extreme they were looking at.
Heres my first thought on how you might be able to do pin out on a 'sandwich a cpu between 2 heatsinks design'.
1) DRAM gets integrated with the cpu. Slight thickness increase, probably quite a bit of added width. We get a bigger area to cool, closer ram and no need for any memory pins.
2) Add power connections to the 2 cooling sides. Running power wires through the coolers shouldn't be an issue.
3) Run as many of the fastest PCIe lanes as you can out the 4 thin sides of the package. These end up handling ALL of the IO.
Some downsides I can think of off the bat are cooking the ram chips and with so much density and heat not sure how well signal integrity would work out.
A relatively easy win here is to have a “stock” set of fins built into the motherboard behind the CPU socket. The CPU could get attached to it with a pad or paste on the back.
FWIW, dang, while I know guidelines are to post specific things for me personally “check out this collection of interactive tutorials” is actually a lot more interesting/helpful than linking to a single tutorial, especially when it’s not clear from that tutorial it’s part of a collection larger collection.
Generally I feel like links to collections of stuff do well when they are interesting and don’t when they aren’t and that you modding to a specific example isn’t actually improving quality.
But if we're to optimize HN for intellectual curiosity (https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...), we have to consider thread quality, and there's no doubt that submissions like this generally lead to generic, and therefore shallow, discussion in the way that I described upthread.
Overall I think the best way for HN readers to discover a site like this is bottom-up: to run across an example of a great article and a great thread about it, and then click around to discover what else is there. This is more in the intended spirit of HN.
Edit: it's a little unorthodox for us to change the URL in midstream after a submission has this many upvotes and pre-existing comments, but I hope everyone understands that I did so to give the site more exposure and appreciation, not less. The alternative would have been to downweight the post as a "list submission" (https://news.ycombinator.com/item?id=37707904), and I didn't want to do that.
I appreciate your work and all, but this URL change disoriented me. I upvoted the submission when it was pointing to the root page of the website.
Coming back to the thread half a day later now, I suddenly found that I upvoted the page "Draggable objects" despite never having previously visited or hearing of the page.
I read the new page anyway and liked it. But it contradicts the original my intent of the upvote and essentially gaslights me into a fictitious past.
I feel like “Ask” vs “Sense” would be a better term.
I’ve found this a lot in relationships where partners where a high bar is expected for how well I can to intuit their current state. “If I have to say it, it’s not romantic”, etc.
I think I tend to fall somewhere in the middle between the two extremes. Being able to ask is feels good, giving and getting feedback feels good, but having someone not care about being aware of where I am at (or factoring that in) doesn’t feel good.
I think this was a nice article and helped walk through some of the maybe unintuitive maths but I feel like they missed the meat a bit.
With random placement, as was said in the article, each flip is independent. With PoTRC it’s using knowledge of current queue depth.
The author didn’t explain the challenges around tracking queue depth, or why PoTRC is better than say keeping an ordered list of queues depth and picking the smallest one.
I’m assuming the trade off is about cost of managing the sorted list of queues depths vs just O(1) look ups of the random nodes’ depths.
It just would’ve been nice to cover that in the article.
I have a OLPC and a Toshiba R500 which have this kind of screen and they sorta kinda do work in sunlight but less so now than the newer super bright iPad screens.
I’m curious if you think you have this down if that means there is a road to color in the future.